保溫爐是(shi)一(yi)臺(tai)容(rong)量可(ke)(ke)達(da)600公斤的臥式(shi)有(you)鐵芯(xin)工頻感應電(dian)(dian)爐,為了便(bian)于控制爐內熔融(rong)金屬的溫度(du),可(ke)(ke)以(yi)采用(yong)(yong)調壓(ya)變壓(ya)器(qi)進行保(bao)溫,但這種(zhong)舊式(shi)設(she)備操(cao)作麻煩,二來消耗電(dian)(dian)力多,設(she)備占用(yong)(yong)面積也(ye)大,采用(yong)(yong)可(ke)(ke)控硅交流調壓(ya)器(qi),操(cao)作簡單便(bian)利,而且能節約用(yong)(yong)電(dian)(dian),一(yi)臺(tai)保(bao)溫爐比用(yong)(yong)調壓(ya)變壓(ya)器(qi)每(mei)晝(zhou)夜可(ke)(ke)以(yi)節省300度(du)電(dian)(dian),又能為生產自動(dong)化創(chuang)造了條件。
另外,由于升(sheng)(sheng)液(ye)管(guan)的(de)(de)(de)工作(zuo)條件惡劣,鑄(zhu)(zhu)造科技工作(zuo)者正在(zai)尋求更好的(de)(de)(de)材料(liao)和(he)合(he)理(li)的(de)(de)(de)措施以提高(gao)其壽(shou)命(ming)(ming)。現(xian)有(you)資(zi)料(liao)表明:采用(yong)(yong)含磷2.7%的(de)(de)(de)鑄(zhu)(zhu)鐵、含銅6.5%的(de)(de)(de)鑄(zhu)(zhu)鐵、高(gao)錳鑄(zhu)(zhu)鐵或用(yong)(yong)具有(you)D型石墨的(de)(de)(de)珠光(guang)體基體的(de)(de)(de)孕育鑄(zhu)(zhu)鐵鑄(zhu)(zhu)造升(sheng)(sheng)液(ye)管(guan),其壽(shou)命(ming)(ming)可(ke)能延長,可(ke)用(yong)(yong)120h以上(shang);有(you)的(de)(de)(de)采用(yong)(yong)普通鑄(zhu)(zhu)鐵管(guan)進行表面滲硫(liu)處理(li),在(zai)鋁(lv)液(ye)中(zhong)(zhong)的(de)(de)(de)壽(shou)命(ming)(ming)約可(ke)提高(gao)3倍(bei);有(you)的(de)(de)(de)在(zai)鑄(zhu)(zhu)鐵管(guan)表面噴鍍一層三(san)氧化(hua)(hua)二鋁(lv)、氧化(hua)(hua)鋯或氧化(hua)(hua)鉻(ge)等材料(liao),升(sheng)(sheng)液(ye)管(guan)在(zai)鋁(lv)液(ye)中(zhong)(zhong)的(de)(de)(de)壽(shou)命(ming)(ming)可(ke)達700h;有(you)的(de)(de)(de)試用(yong)(yong)氮(dan)化(hua)(hua)硅(gui)、碳化(hua)(hua)硅(gui)或氧化(hua)(hua)硼等耐(nai)熱陶瓷作(zuo)升(sheng)(sheng)液(ye)管(guan),雖然成本(ben)高(gao),但在(zai)鋁(lv)液(ye)中(zhong)(zhong)可(ke)用(yong)(yong)半年(nian)以上(shang);還有(you)用(yong)(yong)石棉(mian)耐(nai)熱硅(gui)酸鹽作(zuo)升(sheng)(sheng)液(ye)管(guan),在(zai)三(san)班連續(xu)作(zuo)業的(de)(de)(de)情況(kuang)下,可(ke)使用(yong)(yong)4~5個月,效果良好。